Abs sensor readings

Just checked the resistance of my abs sensors. Between 715 and 730 on three of them and nothing on the other. According to what I can find out it should be up arround 1000. Is that the same for all years, mine is an 03 td4? Is it the same reading at the plug on the abs unit as it is down nearer the wheel?

They do sound low to me but I havefitted 4 new ones to mine this year and mine read slightly over 1100. But my abs is working

Personaly I would replace the dead one and see what happens

Or buy 4 new sensors if you do this tho I would fit new rings for the few quid extra

Just how easy is it to replace the rings? The Haynes book of mumbo jumbo says it can't be done yet you can buy replacements.

This year ihave fitted 4 new abs sensor plus 4 new abs rings

Doesthe later model have rings on the cv joint mine is a early 2000 model